<html lang="zh" xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout" xmlns:th="http://www.thymeleaf.org" layout:decorate="~{template/container}">
    <main class="main-content col-lg-10 col-md-9 col-sm-12 p-0 offset-lg-2 offset-md-3" layout:fragment="content">
        <div th:replace="template/navbar"></div>
        <div class="error">
            <div class="error__content">
                <h2>500</h2>
                <h3>服务器出错</h3>
                <p>请联系网站管理员处理</p>
                <button type="button" class="btn btn-primary btn-pill" onclick="history.back()">&larr; 返回</button>
            </div> <!-- / .error_content -->
        </div> <!-- / .error -->
    </main>
</html>